Heartbroken

13 1/2 weeks pregnant and went for our first ultrasound yesterday. Took my 10 and 12 yr olds back with us because we were all so excited. There was nothing there. I’ve miscarried at some point, possibly a blighted ovum. Not one sign that everything wasn’t perfect. Belly was growing-apparently it was swelling or bloating. I’d felt movement. Now I don’t know what to do. I meet with my OB tomorrow to discuss DNC or medication to help the process along. Anyone been here? Any suggestions?